Field effect may refer to:

• Field effect (chemistry), an effect that a pole (either an unipole or dipole) has on a remote reaction centre (reaction rates, equilibrium)
• Field effect (semiconductor), the physical mechanism modulating the conductivity of a semiconductor using an applied voltage difference
• Field effect, also known as field cancerization, a field of molecular and cellular changes in normal appearing tissue, which predispose to the development of cancer
• Field Effect, a Canadian cybersecurity company
• Wien effect, in electrolytes, an increase in ionic mobility or conductivity of electrolytes at very high gradient of electrical potential

This disambiguation page lists articles associated with the title Field effect.
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